15.2.3.6-4-191.js (1096B)
1 // Copyright (c) 2012 Ecma International. All rights reserved. 2 // This code is governed by the BSD license found in the LICENSE file. 3 4 /*--- 5 es5id: 15.2.3.6-4-191 6 description: > 7 Object.defineProperty - 'O' is an Array, 'name' is an array index 8 named property, 'name' is an inherited data property, test that 9 defining own index named property is successful (15.4.5.1 step 4.c) 10 ---*/ 11 12 try { 13 Object.defineProperty(Array.prototype, "0", { 14 value: 11, 15 configurable: true 16 }); 17 18 var arrObj = []; 19 20 Object.defineProperty(arrObj, "0", { 21 configurable: false 22 }); 23 24 if (!arrObj.hasOwnProperty("0")) { 25 throw new Test262Error("Expected arrObj.hasOwnProperty('0') === true, actually " + arrObj.hasOwnProperty("0")); 26 } 27 if (Array.prototype[0] !== 11) { 28 throw new Test262Error("Expected Array.prototype[0] === 11), actually " + Array.prototype[0]); 29 } 30 if (typeof arrObj[0] !== "undefined") { 31 throw new Test262Error("Expected typeof arrObj[0] === 'undefined'), actually " + typeof arrObj[0]); 32 } 33 34 } finally { 35 delete Array.prototype[0]; 36 } 37 38 reportCompare(0, 0);